IGF-1 DES

How it works

The N-terminal truncation prevents binding to IGF-binding proteins (IGFBP-1 through -6), which normally sequester ~99% of circulating IGF-1. Free DES peptide binds IGF-1R at full potency immediately, activating PI3K/Akt and MAPK/ERK pathways for anabolic signaling. Its short half-life means it works best injected near target tissue post-workout.

Benefits

• 10x more potent than IGF-1 LR3 at the IGF-1R due to IGFBP non-binding
• Strong localized anabolic effect when injected near target muscle
• Promotes satellite cell activation and myonuclei addition
• Accelerates muscle hypertrophy beyond typical IGF-1
• Rapid onset — acts before IGFBP binding can occur
• Useful for lagging body parts when injected locally

Dosing

50–150 mcg · Once daily post-workout

Inject IM directly into the trained muscle for localized effect. Use immediately post-workout during the anabolic window. Lower doses than IGF-1 LR3 due to higher potency.

Ranges reflect commonly cited research protocols, not a prescription. Dose with a licensed provider.

Reconstitution

Reconstitute 1mg vial with 1mL BAC water = 1mg/mL. Use acidified water or dilute acetic acid for stability.

Helix’s free reconstitution calculator gives you the exact draw volume → get the app

Common stacks

Reported side effects

• Hypoglycemia (most significant risk — have glucose on hand)
• Injection site pain (IM)
• Potential for disproportionate organ/tissue growth with chronic overuse
• Headaches
• Joint pain at high doses

Who it’s for

Advanced athletes and bodybuilders seeking localized hypertrophy or supplementing GH/IGF-1 LR3 cycles. Not appropriate for beginners — requires precise intramuscular injection technique and glucose management.